Quadratic Equation Calculator

A quadratic equation has the basic form:

a x^{2} + b x + c = 0

Enter the coefficients a, b, and c of the quadratic equation in its basic standardized form. The solution of a quadratic equation usually consists of two distinct real or complex roots, or one double root — calculated using the discriminant.

Calculation:

Solution in text:

0.4375a²-28=0 ... b=0; pure quadratic equation

Discriminant:
D = b² - 4ac = 49
D > 0 ... The equation has two distinct real roots

a₁ = 8
a₂ = -8

P = {8; -8}